CVEs-PoC/2020/CVE-2020-26265.md

### [CVE-2020-26265](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26265)
![](https://img.shields.io/static/v1?label=Product&message=go-ethereum&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-682%20Incorrect%20Calculation&color=brighgreen)

### Description

Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth from version 1.9.4 and before version 1.9.20 a consensus-vulnerability could cause a chain split, where vulnerable versions refuse to accept the canonical chain. The fix was included in the Paragade release version 1.9.20. No individual workaround patches have been made -- all users are recommended to upgrade to a newer version.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/VPRLab/BlkVulnReport
- https://github.com/demining/Solidity-Forcibly-Send-Ether-Vulnerability